Title :
Analysis of the zero-current-switched quasi-resonant SEPIC used as power factor preregulator with voltage-follower control
Author :
Sebastian, J. ; Martínez, J.A. ; Alonso, J.M. ; Cobos, J.A.
Author_Institution :
Dept. de Ingenieria Electr., Oviedo Univ., Spain
Abstract :
The use of a zero current switched-quasi resonant (ZCSQR) SEPIC (single ended primary inductance converter) with half-wave switch working as a power factor preregulator (PFP) is studied in this paper. The analysis carried out demonstrates that this converter shows excellent characteristics to obtain a high power factor without using any input current feedback loop and also that it allows high switching frequency to operate because it integrates transformer and rectifier diode parasitics into the power topology
Keywords :
DC-DC power convertors; power factor correction; resonant power convertors; switching circuits; voltage control; ZCS; half-wave switch; high power factor; high switching frequency; power factor preregulator; power topology; rectifier diode parasitics; single ended primary inductance converter; transformer parasitics; zero-current-switched quasi-resonant SEPIC; Diodes; Feedback loop; Inductance; Reactive power; Rectifiers; Resonance; Switches; Switching converters; Switching frequency; Topology;
Conference_Titel :
Power Electronics Congress, 1994. Technical Proceedings. CIEP '94., 3rd International
Conference_Location :
Puebla
Print_ISBN :
0-7803-2068-9
DOI :
10.1109/CIEP.1994.494393
